106 Miss M. P. FitzGerald. The Lumbosacral-coccygeal [June 17 , 



Percentage of the Dorsal and of the Ventro-lateral Columns to the 

 Cross-sections of the Cord. 



Table VII. — Percentage of the Dorsal and the Ventro-Lateral Columns to 

 the Cross-Sections of the Cord. The total area of each cross-section of 

 the cord = 100 (Charts IV, VII, and VIII). 



Eegion of cord. 



Distance 

 in cm. from 

 uppermost 

 section of 

 I Lumbar 



Percentage 

 of the dorsal 

 columns. 



Mean 

 percentage. 



Percentage 

 of the 

 ventro-lateral 

 columns. 



Mean 

 percentage. 



Dorsal (thoracic) — 



VI 



XII 



Lumbar — 



[Upper . 

 I i Middle . 

 [Lower . 

 f Upper . 

 II i Middle . 

 [ Lower . 

 ("Upper . 

 Ill-j Middle. 

 [ Lower . 

 I Upper . 

 IV i Middle . 

 [ Lower . 

 f Upper . 

 V I Middle . 

 [Lower . 

 f Upper . 

 VI < Middle. 

 [Lower . 

 [ Upper . 

 VII < Middle . 

 [ Lower . 



Sacral — 



f Upper . 

 I < Middle . 

 [ Lower . 

 f Upper . 



II < Middle . 

 [ Lower . 

 I Upper . 



III^ Middle. 

 I Lower . 

 (' Upper . 

 IV Middle. 

 [ Lower . 

 Coccygeal — 



[ Upper . 

 li Middle. 

 [ Lower . 

 f Upper . 



II I Middle . 

 [ Lower . 



{Upper . 

 Middle . 

 Lower . 



142 



268 

 608 

 846 

 058 

 302 

 558 

 681 

 918 

 064 

 244 

 484 

 608 

 794 

 944 

 154 

 205 

 328 

 450 

 557 

 642 



782 

 906 

 057 

 197 

 316 

 o09 

 623 

 723 

 858 

 974 

 138 

 312 



486 

 622 

 726 

 847 

 939 

 058 

 174 

 278 

 331 



22 

 22 



22 

 23 

 22 

 22 

 22 

 21 

 21 

 21 

 20 

 19 

 17 

 17 

 16 

 15 

 15 

 13 

 13 

 13 

 13 

 13 

 13 



12 

 11 

 11 

 11 

 12 

 12 

 11 

 12 

 11 

 11 

 11 

 11 



10 

 10 

 9 

 9 

 10 



64 

 83 



07] 



06 )■ 



92 J 



67 



03 



75 



81 



32 



63 



82 



97 



26 



74 



40 



01 



45 



78 



54 



27 



09 



05 



18 

 70 

 18 j 

 29 

 •01 

 14 

 67 

 62 

 80 

 55 

 49 

 87 



04 

 67 

 62 

 80 

 01 

 51 

 08 

 54 

 13 





64 - 14 





60 "63 





57 "48 



22 - 68 



57 "19 





55 - 14 





52 -55 



22 -15 



52 -22 





52 -76 





50 '38 



21 25 



50 -22 





50 "35 





47 -85 



18 -35 



45 -89 





46 -52 





46 -15 



15 '72 



44 -17 





42 -70 





42 -52 



13 -59 



43 -63 





42 -66 





40-60 



13 -00 



40-50 





41 -27 





41 -91 



11 -69 



41-28 





41 -34 





41 -45 



11 -82 



41 -22 





40 -60 





41 -67 



12 -03 



39 -56 





38 -99 





38 -73 



11 -64 



38 -36 





38-37 





36 -62 



10 -11 



36 -19 





37 -09 





38 -87 



9-77 



37 -69 





38 -38 





39 -52 



7-92 



44 -49 





43 -54 



